Kotlin - Data Type Numbers

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Introduction

In Kotlin everything is an object.

The built-in number types are as follows:

Type Width
Long 64
Int 32
Short 16
Byte 8
Double64
Float 32

To create a number literal, use one of the following forms:

Demo

fun main(args: Array<String>) {

        val int = 123 
        val long = 123456L 
        val double = 12.34 
        val float = 12.34F 
        val hexadecimal = 0xAB 
        val binary = 0b01010101 
        /*from www  .  j  a  v  a2 s.c o m*/
        
        println(int)
        println(long)
        println(double)
        println(float)
        println(hexadecimal)
        println(binary)                                        
}

A long value requires the suffix L and a float, the suffix F.

The double is used as the default for floating point numbers, and int for integral numbers.

The hexadecimal and binary use the prefixes 0x and 0b respectively.